#24304D
Closest named color: Space Cadet (#2B2D42). oklch(31.3% 0.055 266.2), rgb(36, 48, 77).
Aa
White text reads best on this color (13.08:1).
About this color
#24304D is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.055 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.022 away. White text reads best on it, at 13.08:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.60:1 |
| White text | 13.08:1 |
Values
| HEX | #24304D |
| RGB | rgb(36, 48, 77) |
| HSL | hsl(222, 36%, 22%) |
| OKLCH | oklch(31.3% 0.055 266.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #24304D | 13.08:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #24304D | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #24304D text on white | 13.08:1 | AAA | Lc 99.3 | Preferred for body text |
| #24304D text on black | 1.60:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F2
oklch(88.5% 0.036 266.7)
-
Step 300
300
#ADC0EC
oklch(80.8% 0.066 266.6)
-
Step 400
400
#829FE2
oklch(70.7% 0.104 265.9)
-
Step 500
500
#6485DA
oklch(63% 0.134 266.6)
-
Step 600
600
#4B6DC7
oklch(55.5% 0.145 266.2)
-
Step 700
700
#3D5BAC
oklch(49.1% 0.134 266.3)
-
Step 800
800
#324B8B
oklch(42.7% 0.11 265.9)
-
Step 900
900
#2C3F6F
oklch(37.7% 0.086 266.1)
-
Step 950
950 (this color)
#24304D
oklch(31.3% 0.055 266.2)
#24304D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #25334E | 0.010 |
| Deuteranopia (no green cones) | #212F4C | 0.006 |
| Tritanopia (no blue cones) | #13363B | 0.048 |
| Achromatopsia (no color) | #313131 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24304D
#24304D
oklch(31.3% 0.055 266.2)
- #3D2F0B
#3D2F0B
oklch(31.3% 0.055 87)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #24304D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.022
- Gunmetal #293241 ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.036
- Midnight Green #073B4C ΔE 0.043
- Oxford Blue #1B263B ΔE 0.046
- Marine #042E60 ΔE 0.047
- Onyx #343A40 ΔE 0.053
Use #24304D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.